Bean Creek 2: Tortonian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Pimelometopodon cf. pulchrum
Domning 1978
Mammalia - Sirenia - Dugongidae
Metaxytherium sp. de Christol 1840
    = Dusisiren jordani Kellogg 1925
Domning 1978
Mammalia - Perissodactyla - Desmostylidae
Desmostylus sp. Marsh 1888
Desmostylus hesperus Marsh 1888
Shikama 1966
Mammalia - Perissodactyla - Paleoparadoxiidae
Paleoparadoxia sp. Reinhart 1959
    = Paleoparadoxia tabatai Tokunaga 1939
Shikama 1966
Mammalia - Perissodactyla - Equidae
Hipparion cf. mohavense Merriam 1913
Repenning and Tedford 1977
synonym of Cormohipparion occidentale
Mammalia - Cetacea
Liolithax sp. Kellogg 1931
Mysticeti indet. Cope 1891
Domning 1978
Mammalia - Camelidae
Camelidae indet. Gray 1821
Domning 1978
Mammalia - Carnivora - Otariidae
Otariidae indet. (Gray 1825)
Domning 1978
Pithanotaria starri Kellogg 1925
Repenning and Tedford 1977 1 specimen
Mammalia - Carnivora - Desmatophocidae
Allodesmus sp. Kellogg 1922
Chondrichthyes - Carcharhiniformes - Galeocerdidae
Galeocerdo sp. Müller and Henle 1837
Domning 1978
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Carcharhinus sp. de Blainville 1816
Domning 1978
Chondrichthyes - Lamniformes - Lamnidae
Isurus hastalis (Agassiz 1838)
Domning 1978
recombined as Carcharodon hastalis
Isurus planus (Agassiz 1856)
Domning 1978
Chondrichthyes - Lamniformes - Odontaspididae
Odontaspis sp. Agassiz 1838
Domning 1978
Chondrichthyes - Lamniformes - Otodontidae
Carcharodon megalodon (Agassiz 1835)
Domning 1978
recombined as Otodus megalodon
see common names

Geography
Country:United States State/province:California County:Santa Cruz
Coordinates: 37.1° North, 122.0° West (view map)
Paleocoordinates:36.5° North, 119.2° West
Basis of coordinate:unpublished field data
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
Stage:Tortonian 10 m.y. bin:Cenozoic 6
Key time interval:Tortonian
Age range of interval:11.63000 - 7.24600 m.y. ago
Stratigraphy
Formation:Santa Margarita
Stratigraphic resolution:formation
Stratigraphy comments: lower part of the Santa Margarita Formation; age after Scheirer and Magoon 2007
Lithology and environment
Primary lithology:coarse conglomeratic sandstone
Includes fossils?Y
Lithology description: coase conglomeratic sandstone bed
Environment:shoreface
Geology comments: shoreface to barrier beach, evidence of hypersaline lagoon, "catastrophic conditions" caused deposition of sand body, slopes down into muddy shelf bay
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Disassociated minor elements:all
Collection methods and comments
Collection methods:sieve,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Also known as:UCMP V-5555, M1036
Database number:46070
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:B. Shipps Research group:vertebrate
Created:2004-12-29 14:43:49 Last modified:2017-02-26 16:28:17
Access level:the public Released:2004-12-29 14:43:49
Creative Commons license:CC BY
Reference information

Primary reference:
12283. L. G. Barnes. 1978. A review of Lophocetus and Liolithax and their relationships to the delphinoid family Kentriodontidae (Cetacea: Odontoceti). Bulletin of the Natural History Museum of Los Angeles County 28:1-35 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

60295% 34240D. P. Domning. 1978. Sirenian evolution in the North Pacific Ocean. University of California Publications in Geological Sciences 118:1-176 [M. Uhen/M. Uhen/M. Uhen]
30424 D. P. Domning. 2008. Desmostylia. In C. M. Janis, G. F. Gunnell, M. D. Uhen (eds.), Evolution of Tertiary Mammals of North America, Volume II 640-645 [M. Uhen/M. Uhen]
16892 C. A. Repenning and R. H. Tedford. 1977. Otarioid seals of the Neogene. United States Geological Survey Professional Paper 992:1-93 [M. Uhen/M. Uhen/P. Holroyd]
30804 T. Shikama. 1966. Postcranial skeletons of Japanese Desmostylia. Palaeontological Society of Japan Special Papers 12:1-202 [M. Uhen/M. Uhen]